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305819 (2009 DM122)
Classification: Main-belt Asteroid          SPK-ID: 2305819
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .184186328820206 7.7258e-08  
a 2.450880237413524 1.8368e-08 au
q 1.999461604106332 1.9009e-07 au
i 1.94576410026885 8.1009e-06 deg
node 86.63566081239918 0.00020785 deg
peri 355.2995264941826 0.0002091 deg
M 47.68720221857149 2.0648e-05 deg
tp 2458814.856005592995
(2019-Nov-27.35600559)
7.9943e-05 TDB
period 1401.46275892224
3.84
1.5755e-05
4.313e-08
d
yr
n .2568744675576318 2.8878e-09 deg/d
Q 2.902298870720716 2.1752e-08 au
  Orbit Determination Parameters
   # obs. used (total)      173  
   data-arc span      9918 days (27.15 yr)  
   first obs. used      1992-11-27  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:57:47  

Additional Information
 Earth MOID = 1.01538 au 
 Jupiter MOID = 2.33115 au 
 T_jup = 3.471 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO455253  

305819 (2009 DM122)          Discovered 2009-Feb-27 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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